Human Anatomy (9th Edition)
Human Anatomy (9th Edition)
9th Edition
ISBN: 9780134320762
Author: Frederic H. Martini, Robert B. Tallitsch, Judi L. Nath
Publisher: PEARSON
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Chapter 4, Problem 18RFT
Summary Introduction

Introduction:

Carotene is a kind of pigment, which is found in vegetables and fruits. It is the rich source of vitamin A, which is required for the photoreceptor pigments in the eye and for the maintenance of epithelium.

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The ability of the epidermis to resist rubbing and abrasion is largely due to the presence of (a) melanin, (b) carotene, (c) collagen, (d) keratin.
Match each epidermal layer in column B to its description in column A.Column A                                                                         Column B(1) Desmosomes and shrinkage artifacts give its cells “spiny”projections.                                                                                    (a) stratum basale(2) Its cells are flat, dead bags of keratin.                                                                                    (b) stratum corneum(3) Its cells divide, and it is also called the stratum germinativum.                                                                                  (c) stratum granulosum(4) It contains keratohyalin and lamellated granules.                                                                                    (d) stratum lucidum(5) It is present only in thick skin.                               (e) stratum spinosum
Identify the epidermal layer(s) in which the following cancers arise: (a) basal cell carcinoma; (b) malignant melanoma; (c) squamous cell carcinoma.
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